The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 29, 2019

Filed:

Aug. 19, 2015
Applicant:

Endress + Hauser Gmbh + Co. KG, Maulburg, DE;

Inventors:

Yoichi Kamei, Yamanashi, JP;

Andreas Kaiser, Todtnau, DE;

Dietmar Spanke, Steinen, DE;

Assignee:

ENDRESS+HAUSER SE+CO.KG, Maulburg, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F 23/00 (2006.01); G01F 23/40 (2006.01); G01F 25/00 (2006.01); G01F 23/30 (2006.01);
U.S. Cl.
CPC ...
G01F 23/0023 (2013.01); G01F 23/30 (2013.01); G01F 23/40 (2013.01); G01F 25/0061 (2013.01); G01F 25/0069 (2013.01);
Abstract

A method for the functional diagnosis of an electromechanical fill state measuring device in which a displacement element on a measuring wire is lowered into a filling material in a container such that in an equilibrium state, the weight of the displacement element minus a displacement element buoyancy, which depends upon at least one equilibrium volume, is determined to be equal to a resulting weight of the displacement element. The resulting weight is specified, and the specified resulting weight is kept constant by correspondingly changing the length of the measuring wire in the equilibrium state. The fill state of the filling material is ascertained using the length of the lowered measuring wire. In order to diagnose a function, the specified value of the equilibrium volume of the displacement element is changed, and the resulting change in the length of the measuring wire is ascertained on the basis of the constant equilibrium state of the resulting weight.


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